Transition elbow



FIG. 1 is a perspective view of a transition elbow;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is an environmental perspective view.

The broken lines shown in the figures are for the purpose ofillustrating environment only and form no part of the claimed design.

CLAIM The ornamental design for a transition elbow, as shown anddescribed.